package com.ctbri.io;

import java.io.Externalizable;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectInputStream;
import java.io.ObjectOutput;
import java.io.ObjectOutputStream;

class Blip1 implements Externalizable {
	
	public Blip1() {
		System.out.println("Blip1 Constructor");
	}

	@Override
	public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
		System.out.println("Blip1.readExternal");
	}

	@Override
	public void writeExternal(ObjectOutput out) throws IOException {
		System.out.println("Blip1.writeExternal");
	}
}

class Blip2 implements Externalizable {
	Blip2() {
		System.out.println("Blip2 Constructor");
	}
	
	@Override
	public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
		System.out.println("Blip2.readExternal");
	}
	
	@Override
	public void writeExternal(ObjectOutput out) throws IOException {
		System.out.println("Blip2.writeExternal");
	}
}
public class Blips {

	public static void main(String[] args) throws IOException, ClassNotFoundException{
		System.out.println("Constructing objects:");
		Blip1 b1 = new Blip1();
		Blip2 b2 = new Blip2();
		ObjectOutputStream o = new ObjectOutputStream(
				new FileOutputStream("Blips.out"));
		System.out.println("Saving objects:");
		o.writeObject(b1);
		o.writeObject(b2);
		o.close();
		
		ObjectInputStream in = new ObjectInputStream((
				new FileInputStream("Blips.out")));
		System.out.println("Recovering b1:");
		b1 = (Blip1)in.readObject();
	}

}
